PDF_open_image

(PHP 4 >= 4.0.5, PECL pdflib >= 1.0.0)

PDF_open_image — Use image data [deprecated]

说明

PDF_open_image ( resource $p , string $imagetype , string $source , string $data , int $length , int $width , int $height , int $components , int $bpc , string $params ) : int

Uses image data from a variety of data sources.

This function is deprecated since PDFlib version 5, use virtual files and PDF_load_image() instead.

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User Contributed Notes 5 notes

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K ¶

16 years ago


Ok, according to the PDFlib docs,

bpc - only for imagetype raw (required in this case).  The number of bits per component.  Must be 1,2,4 or 8

components - only for imagetype raw (required in this case). The number of image components.  Must be 1, 3 or 4.

Read the docs (page 171) for a full list of params I assume are used for the last argument.

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tfraser at jeffsys dot net ¶

16 years ago


If you want to open a TIFF image, you have to use pdf_open_image_file().  If you want to open a TIFF image from memory, you'll have to wait until version 5.  I gleaned this from the PDFlib folks themselves:

> from rp@pdflib.com
The only way to open TIFF with PDFlib 4 is to open it from
file. But in PDFlib 5 (http://www.pdflib.com/beta/) we add
a virtual file system, so you can easy open a file from
memory.

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nils at deviant dot no ¶

17 years ago


a quick example:

$pdfimage = pdf_open_image_file($pdf, "jpeg", "test.jpg");
pdf_place_image($pdf, $pdfimage, 10, 10, 0.6);

...
pdf_close etc..

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-1

lindsayNOSPAM at NOSPAMdingos dot net ¶

16 years ago


if you ahve pdflib v4 or higher, you may also use TIFF images, by specifying 'tiff'  in the image type.

checked the pdflib documentation, tried it out, it works.

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-1

bob at nijman dot de ¶

17 years ago


mark troyan wrote:



> Can you use the PDF_open_image to handle gif's? How?



and Thomas Merz answered:



Nope. Unfortunately PDF supports _nearly_ everything needed

to decode GIFs internally (as with JPEG), but some minor

feature is missing. It seems Adobe also realized this --

they added the missing link in PostScript 3, so chances are

it will appear in PDF 1.4 or something...



Since the PDF_open_image() interface is meant for dumping

the image data to the PDF without any further interpretation,

it can't support GIF.



Found at:

http://groups.yahoo.com/group/pdflib/message/301

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官方地址：https://www.php.net/manual/en/function.pdf-open-image.php

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PDF_open_image

说明

User Contributed Notes 5 notes